[doxygen] Do not sort member docs

Things are grouped by association within source files. Sorting by
name effectively breaks the grouping in the resulting documentation.

Signed-off-by: Simo Piiroinen <simo.piiroinen@jollamobile.com>

Doxyfile

@@ -380,7 +380,7 @@ INLINE_INFO            = YES
 # alphabetically by member name. If set to NO the members will appear in 
 # declaration order.
 
-SORT_MEMBER_DOCS       = YES
+SORT_MEMBER_DOCS       = NO
 
 # If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the 
 # brief documentation of file, namespace and class members alphabetically